PFMOD™ Adjustable Inline Passive Crossovers
Harrison Laboratories’ PFMOD line provides inline, line-level passive crossovers built for two channel systems, designed to manage audio frequencies between a source unit and an amplifier without requiring an external power source. Every module in the line — the HP-1 high pass filter, LP-1 low pass filter, HP-SUB subsonic filter, and 2-W1 two way filter — all are fully adjustable, letting you select the exact frequency response your system needs. These modules use RCA connections and are marketed as “active crossover simulators” because they offer the frequency control typically found in active units while remaining noise-free and transparent to the signal.
🇺🇸 MADE IN THE USA 🇺🇸
